Its county seat is San Antonio, the second-most populous city in Texas and the seventh-largest city in the United States. Bexar County is included in the San Antonio-New Braunfels, TX metropolitan statistical area. Bexar county includes Government Canyon state natural area in northwestern part of the county.
If the screen width is 7 feet and the projector's throw ratio is 2.0 - 2.4:1 (because projectors have zoom lenses, they also have a range of throw ratios) then you can place your projector anywhere from 14 to 16.8 feet away from the screen.
Report Abuse. You should place the projector at less 10 to 12 feet away. Keep in mind that projectors needs to be in a dark room to be effective. The lamps on a projector only last about 2,000 hours and the cost of replacing them starts at $50 to around $300.For a 120 screen you should also seat back around 10 feet away, you what to see the whole screen without moving your eyes.Pick up a copy of Home Theater Magazine May issue, it list just about every projector in the market today.or a 120 screen you should also seat back around 10 feet away, you what to see the whole screen without moving your eyes. Pick up a copy of Home Theater Magazine May issue, it list just about every projector in the market today.